It is generaly a toggle function. like Master Virus said
But it might be a trigger where other players will end up closing the door. so as the triggers cycle though they see ...
player 1 - open door
player 2 - close door
player 3 - close door
an example of this INCORRECT close trigger is
players:
-FORCE 1
condtions:
-CURRENT PLAYER brings exactly 0 men to location door
actions:
-enable doodad state for all players @ location door